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Advantages And Disadvantages Of Fpta

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This chapter presents about the FPGA ideas and FPGA Synthesis Flow. An FPGA is a device that comprises of thousands or even large number of transistors connected to implement logic functions. They implement functions from simple addition and subtraction to complex digital filtering and error detection and its correction.
4.1 INTRODUCTION TO FPGA
A field programmable gate array (FPGA) is a semiconductor device that can be designed by the designer or the customer after manufacturing, hence it is known as “field programmable”. Field Programmable gate arrays (FPGAs) are truly innovatory devices that combine the benefits of both hardware and software. FPGAs are programmed with the logic circuit diagram or the source code in Hardware Description Language (HDL) to determine how the chip will work. They may be used to perform any logical function that an Application Specific Integrated Circuit (ASIC) might perform but the capacity to update the functionality after shipping provides advantages for many applications. FPGAs contain programmable logic components also called “logic blocks”, and a hierarchy of reconfigurable interconnects that permit the blocks to be “wired together” like a 1 chip programmable breadboard. Logic blocks can be designed to implement complex combinational functions or simply logic gates like AND and OR. In most FPGAs, the logic block also consists of memory elements, which can be simple flip flops or complete blocks of memory. They perform circuits just like hardware performing huge area, power and performance advantages over software, still can be programmed again economically …show more content…

4.4 FPGA IMPLEMENTATION USING XILINX
The FPGA that is used for the implementation of the circuit is the Xilinx Spartan 6E (Family), XC3S5000 (Device). The working environment/tool for the design is the Xilinx ISE 14.2i is used for FPGA Design flow of VHDL code.
4.4.1 Overview of FPGA Design

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